<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>组合式api</title>
  </head>
  <body>
    <div id="app">
      {{ count }}
      <button @click="add">1</button>
    </div>
  </body>
  <script src="../lib/vue.global.js"></script>
  <script>
    const { ref, onMounted } = Vue;
    Vue.createApp({
      setup() {
        const count = ref(0);
        const add = () => {
          count.value += 1;
        };
        onMounted(() => {
          console.log(111);
        });
        return {
          count,
          add
        };
      },
      data() {
        return {
          count: 10,
        };
      },
      methods: {
        add() {
         this.count += 10
        },
      },
      mounted(){
        console.log('222');
      }
    }).mount("#app");
  </script>
</html>
